2006 SUZUKI SX4 check engine

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-48
DTC B1051 / B1055: Seat Belt Pretensioner Circuit High ResistanceS6RW0D8204026
DTC B1051: Driver Seat Belt Pretensioner Circuit High Resistance
DTC B1055: Passenger Seat Belt Pretensioner Circuit High Resistance
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
“L04”[A]
BLK
L04-28
6 8
7
RED
GRN“L313”L04-27
910
15
13
16
12V5V30V 30V
14
1
2 BLKWHT3
4
5
“L04”
GRN/ORN
GRN/YEL
BLU/ORN
BLU/YEL
L04-9
L04-7
L04-8
11
12 “L283”
L04-10
“L285”
I6RW0C820010-01
[A]: Shorting bar 6. Ignition switch 12. Passenger seat belt pretensioner
1. Battery 7. “A/B” fuse 13. DC / DC converter
2. Fuse 8. Junction block assembly 14. Back up capacitor
3. Main fuse box 9. Ground for air bag system 15. Safing power driver
4. “IGN” fuse 10. SDM 16. Mechanical longitudinal G sensor (switch)
5. Individual circuit fuse box No.1 11. Driver seat belt pretensioner
DTC detecting condition Trouble area
DTC B1051:
Driver seat belt pretensioner circuit is more than 4.0 Ω for
more than 4 sec.
DTC B1055:
Passenger seat belt pretensioner circuit is more than 4.0
Ω for more than 4 sec.• Driver / passenger seat belt pretensioner circuit
• Driver / passenger seat belt pretensioner
•SDM
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.

Downloaded from www.Manualslib.com manuals search engine 8B-49 Air Bag System:
2Seat belt pretensioner circuit check
1) With ignition switch turned OFF, remove center pillar
lower trim of applicable side and disconnect seat belt
pretensioner connector “L283” or “L285”.
2) Check for proper connection to applicable seat belt
pretensioner at terminals in “L283” or “L285” connector.
3) If OK, then connect special tools (A), (B) and (C) to
“L283” or “L285” connector disconnected in Step 1).
Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310
4) Check SDM for DTC.
With ignition switch turned ON, is DTC B1051 or B1055 still
indicated?Go to Step 3. Replace defective seat
belt pretensioner
referring to “Front Seat
Belt Removal and
Installation in Section
8A”. Step Action Yes No
STEERING WHEEL
(B)(C)(A)
“L283”, “L285”
I7RW01822057-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-50
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

3Seat belt pretensioner circuit resistance check
1) Disconnect special tools from applicable seat belt
pretensioner connector.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to SDM at terminals “L04-7”
and “L04-8” (for DTC B1051) or terminals “L04-9” and
“L04-10” (for DTC B1055).
4) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
5) Measure resistance between “L04-7” and “L283-2”, and
between “L04-8” and “L283-1” (for DTC B1051).
6) Measure resistance between “L04-9” and “L285-1”, and
between “L04-10” and “L285-2” (for DTC B1055).
Is each measured resistance 1
Ω or less?Substitute a known-
good SDM and recheck.Repair open or high
resistance wire in
defective circuit. Step Action Yes No
“L04-8” “L04-9” “L04-10” “L04-7”(A)
1,(A)
“L238-1”
“L235-1”“L238-2”
“L235-2”
I7RW01822058-01

Downloaded from www.Manualslib.com manuals search engine 8B-51 Air Bag System:
DTC B1052 / B1056: Seat Belt Pretensioner Circuit Low ResistanceS6RW0D8204027
DTC B1052: Driver Seat Belt Pretensioner Circuit Low Resistance
DTC B1056: Passenger Seat Belt Pretensioner Circuit Low Resistance
Wiring Diagram
Refer to “DTC B1051 / B1055: Seat Belt Pretensioner Circuit High Resistance”.
DTC Detecting Condition and Trouble Area
DTC TroubleshootingDTC detecting condition Trouble area
DTC B1052:
Driver seat belt pretensioner circuit is less than 0.9 Ω for
more than 4 sec.
DTC B1056:
Passenger seat belt pretensioner circuit is less than 0.9 Ω
for more than 4 sec.• Driver / passenger seat belt pretensioner circuit
• Driver / passenger seat belt pretensioner
•SDM
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Seat belt pretensioner circuit check
1) With ignition switch turned OFF, remove center pillar
lower trim of applicable side and disconnect applicable
seat belt pretensioner connector “L283” or “L285”.
2) Check for proper connection to applicable seat belt
pretensioner at terminals in “L283” or “L285” connector.
3) If OK, then connect special tools (A), (B) and (C) to
“L283” or “L285” connector disconnected in Step 1).
Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310
4) Check SDM for DTC.
With ignition switch turned ON, is DTC B1052 or B1056 still
indicated?Go to Step 3. Replace defective seat
belt pretensioner
referring to “Front Seat
Belt Removal and
Installation in Section
8A”.
STEERING WHEEL
(B)(C)(A)
“L283”, “L285”
I7RW01822057-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-52
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC B1053 / B1057: Seat Belt Pretensioner Shorted to GroundS6RW0D8204028
DTC B1053: Driver Seat Belt Pretensioner Shorted to Ground
DTC B1057: Passenger Seat Belt Pretensioner Shorted to Ground
Wiring Diagram
Refer to “DTC B1051 / B1055: Seat Belt Pretensioner Circuit High Resistance”.
DTC Detecting Condition and Trouble Area3Seat belt pretensioner circuit resistance check
1) Disconnect special tools from applicable seat belt
pretensioner connector.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to SDM at terminals “L04-7”
and “L04-8” (for DTC B1052) or terminals “L04-9” and
“L04-10” (for DTC B1056).
4) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
5) Measure resistance between “L04-7” and “L04-8” (for
DTC B1052) or between “L04-9” and “L04-10” (for DTC
B1056).
Is each measured resistance infinity?Substitute a known-
good SDM and recheck.Repair short wire in
defective circuit. Step Action Yes No
“L04-8” “L04-9” “L04-10” “L04-7”(A)
1,(A)
I7RW01822059-01
DTC detecting condition Trouble area
DTC B1053:
Driver seat belt pretensioner circuit has been shorted to
ground for more than 4 sec.
DTC B1057:
Passenger seat belt pretensioner circuit has been shorted
to ground for more than 4 sec.• Driver / passenger seat belt pretensioner circuit
•SDM

Downloaded from www.Manualslib.com manuals search engine 8B-53 Air Bag System:
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Seat belt pretensioner circuit check
1) With ignition switch turned OFF, remove center pillar
lower trim of applicable side and disconnect applicable
seat belt pretensioner connector “L283” or “L285”.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to applicable seat belt
pretensioner at terminals in “L283” or “L285”.
4) Check for proper connection to SDM at terminals “L04-7”
and “L04-8” (for DTC B1053) or terminals “L04-9” and
“L04-10” (for DTC B1057).
5) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
6) Measure resistance between “L04-7” and body ground,
and between “L04-8” and body ground (for DTC B1053).
7) Measure resistance between “L04-9” and body ground,
and between “L04-10” and body ground (for DTC
B1057).
Special tool
(A): 09932–76010
Is each measured resistance infinity?Substitute a known-
good SDM and recheck.Repair short to ground
in defective circuit.
“L04-8” “L04-9” “L04-10” “L04-7”
1,(A)
(A)
I7RW01822060-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-54
DTC B1054 / B1058: Seat Belt Pretensioner Circuit Shorted to Power SupplyS6RW0D8204029
DTC B1054: Driver Seat Belt Pretensioner Circuit Shorted to Power Supply
DTC B1058: Passenger Seat Belt Pretensioner Circuit Shorted to Power Supply
Wiring Diagram
Refer to “DTC B1051 / B1055: Seat Belt Pretensioner Circuit High Resistance”.
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to “DTC Clearance”, if any.
• Repeat “Air Bag Diagnostic System Check” to confirm that the trouble has been corrected.

DTC detecting condition Trouble area
DTC B1054:
Driver seat belt pretensioner circuit has been shorted to
power supply for more than 4 sec.
DTC B1058:
Passenger seat belt pretensioner circuit has been shorted
to power supply for more than 4 sec.• Driver / passenger seat belt pretensioner circuit
•SDM
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Seat belt pretensioner circuit check
1) With ignition switch turned OFF, remove center pillar
lower trim of applicable side and disconnect applicable
seat belt pretensioner connector “L283” or “L285”.
2) Disconnect SDM connector “L04”.
3) Check for proper connection to applicable seat belt
pretensioner at terminals in “L283” or “L285”.
4) Check for proper connection to SDM at terminals “L04-7”
and “L04-8” (for DTC B1054) or terminals “L04-9” and
“L04-10” (for DTC B1058).
5) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
6) With ignition switch turned ON, measure voltage
between “L04-7” and body ground, and between “L04-8”
and body ground (for DTC B1054).
7) Measure voltage between “L04-9” and body ground and
between “L04-10” and body ground (for DTC B1058).
Special tool
(A): 09932–76010
Is each measured voltage 0 V?Substitute a known-
good SDM and recheck.Repair short to power
supply in defective
circuit.
“L04-8” “L04-9” “L04-10” “L04-7”
1,(A)
(A)
I7RW01822063-01

Downloaded from www.Manualslib.com manuals search engine Air Bag System: 8B-56
DTC Troubleshooting
Step Action Yes No
1Was “Air Bag Diagnostic System Check Flow” performed?Go to Step 2. Go to “Air Bag
Diagnostic System
Check Flow”.
2Side-air bag circuit check
1) Remove applicable driver / passenger side-air bag
(inflator) module from seat back referring to “Side-Air
Bag (Inflator) Module Removal and Installation”.
2) Check for proper connection to applicable side-air bag
(inflator) module at terminal in connector “Q104” or
“Q105”.
3) If OK, then connect special tools (A), (B) and (C) to
applicable side-air bag (inflator) connector “Q104” or
“Q105”.
Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310
4) Check SDM for DTC.
With ignition switch turned ON, is DTC B1061 or B1065 still
indicated?Go to Step 3. Replace side-air bag
(inflator) module
referring to “Side-Air
Bag (Inflator) Module
Removal and
Installation”.
“Q104”, “Q105”
STEERING WHEEL(B) (C)
(A)
I7RW01822077-01